M E G P l u s | 2 0 1 9

MEG PLUS STANDALONE MONITOR FOR TOXIC AND COMBUSTIBLE GASES

FEATURES

• SUPPORTS THREE INPUT CHANNELS

• ACCEPTS PRE-CALIBRATED PLUG-IN SENSORS

• INTUITIVE TOUCH SCREEN USER INTERFACE WITH

PASSWORD PROTECTION

• AUTOMATIC FAIL-SAFE

• 3-STAGE 10A SPDT RELAY OUTPUTS WITH FIELD

PROGRAMMABLE SET-POINTS, WARNING, HIGH &

ALARM

• TIME DELAY FOR ALARM

• BUILT-IN VISUAL/AUDIBLE ALARM WITH KILL SWITCH

• 4 ANALOG 4-20MA OUTPUTS

• RS485/MODBUS RTU SERIAL COMMUNICATION

• FAN OVERRIDE TIMER (OPTIONAL)

• DATA LOGGING (OPTIONAL)

APPLICATIONS

• PARKING GARAGES, LOADING DOCKS

• VEHICLE MAINTENANCE FACILITIES

• CAR DEALERSHIPS

• INDOOR SPORTS COMPLEXES/ARENAS

• HOSPITALS, AMBULANCE BAYS

• AIRPORTS, FIRE STATIONS

• WAREHOUSES

• BOILER ROOMS, BATTERY ROOMS

• GREENHOUSES, WINERIES

• LABORATORIES

• COMMERCIAL KITCHENS

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MissionTo ensure occupant safety in enclosed areas from any sudden release or build-up of hazardous gases.

To maintain indoor air quality at acceptable levels.

To help reduce building energy costs by operating the mechanical ventilation system intermittently based on demand.

DescriptionThe KADA MEG Plus is a compact standalone multi-gas monitor with up to 3 sensors. The MEG Plus will monitor a combination of gases from different sensors, display the acquired readings on a touchscreen LCD and, based on conditions, provide a set of outputs to control the ventilation system of the monitored area and activate alarms.

Standard models of the MEG Plus are offered with 1 integral sensor and 2 remote sensors; alternatively, Meg Plus can be ordered with all its 3 sensors remote.

MEG Plus has a set of 3 SPDT relay outputs reserved for WARNING, HIGH and ALARM levels with separately programmable set points for each sensor. The relay outputs of the MEG Plus are typically used to turn on supply/exhaust fans, open motorized dampers and activate remote strobe/horns.

MEG PLUS FLEXIBLE AND PRACTICAL, EFFICIENT AND COST-EFFECTIVE

MEG Plus also has 4 analog

4-20mA outputs (one for

each sensor and one more

for peak or average reading).

The analog outputs of the

MEG Plus can be used to

control variable frequency

drive (VFD) fans, remote

actuators or simply to feed

data to the BAS (Building

Automation System).

Although shipped as a “Plug

and Play” device, Meg Plus

also allows the user to make

field-modifications easily thanks

to a user-friendly touch screen

interface.

Meg Plus is housed in a robust

NEMA 1 metal enclosure with

a hinged door and tamper

proof screws; optionally

MEG Plus can be ordered

with splash-proof cover or a

protective guard.

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Variable Frequency Drives (VFD’s),

Air Handling Units (AHU’s),

Building Automation System (BAS)

Network Connectivity,IoT(cloud)

Exhaust/Supply fans,Motorized Dampers,

Strobe/Horn units

Relay Outputs Analog Outputs

RS485/MODBUS

24V/60HZ120V/60HZ

4-20mA 4-20mA

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MEG PLUS GENERAL SPECIFICATIONSUses Wall-mounted standalone gas monitor for toxic and combustible gases and oxygen

deficiency -single, double and triple-sensor platforms

Aluminum powder-painted finish 203 x 140 x 76 mm (8 ½ x 5½ x 3 in) 2kg (4.4lbs)

Polycarbonate 108 x 83 x 45 mm (4¼ x 3¼ x 1¾ in) less than 0.5kg (1.1lbs)

Power Requirement 120V 50/60HZ 500mA, 12VA also available 24V 50/60Hz 750mA

Input Type (3) 4-20mA, 2- or 3-wire

Relay Outputs (3) SPDT (Form C) 10A @ 250VAC

Analog Outputs (4) 4-20mA into 500 ohms max

Operating Temperature -20 to 50°C (4-122°F)

Humidity 5 to 95% RH non-condensing

Enclosure (monitor)

Sensor enclosure

Sensing Method Diffusion

Gases Detected CO, CO2 ,H2S, NH3 ,NO2 ,O2 ,CH4 ,C3H8 ,C 4 H10 ,H22CLSensor Technology Electrochemical cell (CO,CL2 2S,NH 3 ,NO2 ,O2 ), Catalytic bead(CH4,C3H8 ,C4 H10, H2 ),, H

Response Time T90 < 30 sec

Sensor Accuracy ± 3% Full Scale @ 25°C

Hysteresis 0-20% Full Scale programmable

Display 5” color LCD touchscreen. Graphic user interface

Audible Alarm 85 dBA @ 3 meters (10ft)

OPTIONAL FEATURESBattery Backup 22.2 V lithium ion battery 2600mAh

Onboard Data logging Logged events and sensor readings

Communication RS485/MODBUS RTU serial communication

,

Infrared CO2

MEG PLUS AT KADA, WE VALUE QUALITY ASSURANCE AS OUR TOP PRIORITY

TOXIC GASES

AMMONIA

CARBON DIOXIDE

CARBON MONOXIDE

CHLORINE

HYDROGEN SULFIDE

NITROGEN DIOXIDE

COMBUSTIBLES:

BUTANE

HYDROGEN

METHANE

PROPANE

OXYGEN DEFICIENCY:

OXYGEN

KADA GS SERIES GAS SENSORS 4-20MA OUTPUT

Gas

Model no. Connect

Sensor technology

Range Coverage radius

Mounting height Sensor Life

I: integraltype

R: remote

Ammonia NH3

GS2-NH 3-I2-wire Electrochemical 0-100PPM 6m (20ft)

0.5m (20in) below ceiling >2 years

GS2-NH3-R

Butane C4H10

GS3-C4H10-I3-wire Catalytic bead 100% L.E.L. 6m (20ft) 0.3m (12in) a.f.f.** >3 years

GS3-C4H10-R

Carbon dioxide CO2

GS3-CO2-I3-wire Infrared 0-5000PPM* 15m (50ft)

1.21-1.83m (4-6ft) a.f.f.

>10 yearsGS3-CO2-R

Carbon monoxide COGS2-CO-I

2-wire Electrochemical 0-200PPM 15m (50ft)1.21-1.83m (4-6ft)

a.f.f. 10 yearsGS2-CO-R

Hydrogen H2

GS3-H2-I3-wire Catalytic bead 100% L.E.L 6m (20ft) 0.5m (20in) below

ceiling >3 yearsGS3-H2-R

Hydrogen sulfide H2SGS2-H2S-I

2-wire Electrochemical 0-20PPM 6m (20ft) 0.3m (12in) a.f.f. >3 yearsGS2-H2S-R

Methane CH4

GS3-CH4-I3-wire Catalytic bead 100% L.E.L. 6m (20ft) 0.5m (20in below

ceiling >3 yearsGS3-CH4-R

Nitrogen dioxide NO2

GS2-NO2-I2-wire Electrochemical 0-10PPM 15m (50ft) 0.5m (20in) below

ceiling >2 yearsGS2-NO2-R

Oxygen O2

GS2-O2-I2-wire Electrochemical 0-25% 6m (20ft) 1.21-1.83m (4-6ft)

a.f.f. 5 yearsGS2-O2-R

Propane C3H8

GS3-C3H8-I3-wire 100% L.E.L. 6m (20ft) 0.3m (12in) a.f.f. >3 years

GS3-C3H8-RCatalytic bead

Chlorine CL2GS2-CL2-I GS2-CL2-R 2-wire Electrochemical 0-10PPM 6m (20ft)

1.21-1.83m (4-6ft) a.f.f. >2 years

MEG Plus employs electrochemical, catalytic

bead and infrared sensors to detect various

gases. KADA’s GS-Series 4-20mA sensor modules

are furnished pre-calibrated from the factory and

can either be integral or remote to the MEG Plus.

Remote types are field-connected to the input

channels of the MEG Plus via dedicated 2 or 3

wires. Please refer to the table below for more

information on the KADA GS-series gas sensors.

MEG PLUS KADA GS-SERIES GAS SENSORS ARE RELIABLE AND LONG LASTING WITH A 2 YEAR LIMITED WARRANTY

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A typical application where MEG Plus is monitoring 3 different gases in a parking garage: CO (for gasoline-fuelled engines), NO (for diesel-fuelled engines) and C H (for flammable vapors).

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MEG Plus combines time proven concepts in gas detection withmodern technology offering sound solutions for personal safety and protection of property

in a building environment.

CONTACT US:Kada Industries50 Steeles Ave E, Unit 10Milton, ON L9T 4W9, CANADA438.883.9693Email: info@kadaindustries.caWebsite: www.kadaindustries.com (under construction)

REPRESENTED BY:

Although we strive to ensure accuracy in this data sheet, we are not responsible for any errors or omissions that may be encountered therein. This data sheet may not be used as a source for regulations, standards or guidelines. The contents of this data sheet are subject to change without notice.

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MEG Plus makes dual and triple-sensor gas detection possible in any of the following combinations: toxic-toxic, toxic-combustible, combustible-com-bustible, toxic-oxygen, combustible-oxygen or even toxic-combustible-oxygen.

Although designed primarily as a standalone monitor, MEG Plus can also be configured to operate as an addressable device (node) within an integrated network via its RS485/MODBUS communication port.

MEG Plus is a fail-safe device, whereby upon a fault condition, it will force all (or pre-selected) outputs to switch to their HIGH state, thus allowing alarm(s)to be activated and ventilation equipment to run at maximum design rate. The fail-safe mode will last until faults are rectified.

MEG PLUS INTUITIVE, WALK THROUGH MENUS ON A TOUCHSCREEN LCD HELP USERS SET UP THEIR MACHINE IN NO TIME

N0 SENSOR (REMOTE)

CO SENSOR (INTEGRAL)

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8C H (PROPANE) SENSOR (REMOTE)3